package c02;

public class Xiexie20 {
    public static void main(String[] args) {
        int [] arr;
        arr = new int [3];
        System.out.println("arr[0] = " + arr[0]);
        System.out.println("arr[1] = " + arr[1]);
        System.out.println("arr[2] = " + arr[2]);
        System.out.println("数组长度是= " +arr.length );
    }
}

